Search Results for decrease

... forest age, structural complexity, local food tree species diversity, history of prior koala occurrence and decreased past logging intensity. This relationship was driven primarily by breeding females, with the number of male koala calls weakly or uncorrelated with koala sightings and mapped habitat...

... and temperature, with responses by the two species in essentially opposite directions. For both species, encounter rates increased with increasing depth and with decreasing salinity. Encounter rates peaked at neutral to alkaline pH for GGBF (i.e., 6.8 to 8.0 or higher) and acidic pH for SMF (i.e., 5.5 to 6.0...

... flight duration data), despite the mean number of flights undertaken decreasing from 5.7 pre-spray to 4.7 post-spray during 10 min survey periods. The proportion of display flights in which the male was calling, however, did not differ between pesticide-exposed and unexposed male C. cruralis (χ 2 (0.05...

... the less-insulated nest boxes. Temperatures inside nest boxes with more than one side insulated took longer to increase and decrease in a convective heat chamber, but importantly, never reached the heat extremes (> 40°C) of less insulated nest boxes. Fully insulated nest boxes also maintained heat...

... in certain contexts. Indeed, decreased carcass persistence in the Forest study site was evident in the cool season, when dingo scavenging occurred during the first two weeks of monitoring. The variability in results highlights the complexity of patterns in dingo scavenging and, more broadly, of vertebrate...

..., at the permanent pond there were changes through time in both plant and frog species. As the pond aged, the relative abundance of various species of emergent aquatic plants changed, the area of open water steadily decreased, and the depth decreased. Over the same period, the relative abundance of several frog...

... population argon age and sex structure compared with populations that were ether non-commercially- shot or were protected from shooting It was found, however that shooting In general (whether commercial or non-commercial) decreased the presence of large pouch-young thus delaying the reproductive activity...

... to potentially decrease reproductive success. Nest density was positively correlated with distance from the boardwalk. Gulls nesting ≤5 m from the boardwalk were more vigilant towards a stationary investigator than those further away. Tourists walking past breeding gulls stimulated a large increase in intra...

... welfare, professional population control should increase not decrease. Landholders need to get involved in professional population control and regard kangaroos as assets not pests. If kangaroos were as valuable as wild goats or deer, landholders would have an incentive to co-produce kangaroos alongside...

... in Australia. Multiple conservation benefits and significant economic savings have resulted from the long-term and widespread reductions in rabbit numbers and impacts. In an effort to ‘boost’ rabbit biocontrol, an additional variant of RHDV1 ('K5') was recently released nationwide to counteract the decreasing...

... region of the Yukon we have monitored control populations of snowshoe hares, mice, and voles from 1973 to 2017 (the longest of any similar time series anywhere in North America) and here we ask what we have observed and learned from these time series. The amplitude of hare cycles may be decreasing over...

... the harvest period in the early 20th century, with an increase in area of occupancy in central Queensland and a decrease in southern and northern Queensland. This correlates with corresponding changes in population size. Analysis of distribution does not provide support for listing P. cinereus as vulnerable...